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<?php //if -behind- have double or more (\\) match it, but if (\) its one ignore it //get -behind\\- $str = 'hey look -behind\\- you'; //ignore -behind\- $str = 'hey look -behind\- you'; preg_match_all('/\-(.*?)(?<!\\\{2})\-/', $str, $matched); var_dump($matched);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> array(1) { [0]=> string(9) "-behind\-" } [1]=> array(1) { [0]=> string(7) "behind\" } }

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